Climate Overview
The climate in Tondano is hot. The average annual temperature is 25°C and approximately 2791mm of precipitation falls per year. Tondano receives a notable amount of rainfall throughout the year, including during its driest month. Tondano sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Tondano has relatively stable temperatures year-round, staying within a 6°C range. The warmest month is November, when average highs reach 29°C and the mean temperature sits around 26°C. September is the coolest month, with minimum temperatures around 23°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.
Precipitation
Tondano is a very wet location, receiving approximately 2791mm of precipitation annually, which averages out to around 233mm per month. The wettest month is June, averaging 299mm of rainfall. May and November also tend to see above-average precipitation. The driest month is August, with just 149mm. That's 150mm less than June, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Tondano is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 11km/h in winter, 11km/h in spring, 15km/h in summer, 12km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Tondano, which began on March 20, 2026. Tondano sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in November at around 29°C, while the coldest stretch bottoms out in September near 23°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 24 to 29°C. Rainfall is heavy, totalling around 774mm across the season with a monthly average of 258mm. Winds are generally light, averaging 11km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 23 to 28°C. Rainfall is heavy, totalling around 688mm across the season with a monthly average of 229mm. Winds are generally light, averaging 15km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 29°C. Rainfall is heavy, totalling around 636mm across the season with a monthly average of 212mm. Winds are generally light, averaging 12km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 29°C. Rainfall is heavy, totalling around 693mm across the season with a monthly average of 231mm. Winds are generally light, averaging 11km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Tondano based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
